科研之友
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摘要
The alpha preformation factor and penetration probability have been analyzed for even-even nuclei of Po, Rn, Ra using experimental released energies and alpha decay half-lives in the frame of the double folding model. It is shown that N = 126 is a neutron magic number from alpha preformation and shell effects play an important role in alpha preformation. The closer the nucleon number is to the magic number, the more difficult alpha formation in the parent nucleus is. The preformation factor can supply information on the nuclear structure and the penetration probability mainly determines alpha decay half-life.
- 出版日期2009-9
- 单位北京航空航天大学
